| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| boron valence electron number | 1.64 | 0.2 | 6996 | 56 | 29 |
| boron | 0.53 | 0.3 | 6726 | 73 | 5 |
| valence | 1.1 | 0.1 | 3861 | 13 | 7 |
| electron | 1.32 | 0.3 | 7585 | 36 | 8 |
| number | 1.36 | 0.3 | 8842 | 59 | 6 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| boron valence electron number | 1.8 | 0.4 | 6585 | 17 |
